Home / 31,746.96-47,615.76-8,375.04

Finding the Fourth Proportional to 31,746.96, 47,615.76 and 8,375.04

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Solution

The fourth proportional to 31,746.96, 47,615.76 and 8,375.04 is: 12,561.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,746.96 : 47,615.76 = 8,375.04 : x
  2. Step 2: Convert to fraction form
    31,746.96/47,615.76 = 8,375.04/x
  3. Step 3: Cross multiply
    31,746.96x = 47,615.76 × 8,375.04
  4. Step 4: Simplify right side
    31,746.96x = 398,783,894.63
  5. Step 5: Solve for x
    x = 398,783,894.63/31,746.96
  6. Step 6: Final answer
    x = 12,561.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.